Admob invalid activity on 2 februari


On 2 februari I had a lot of invalid activity on Admob. 10 times more than I earned that day and more invalid activity than I ever had before. Shouldn’t I see this invalid activity back in my earnings from that day? Now Admob is costing me money and I have to pay them 10 times more back than what I earned on that day. Are there people with similar experiences and is there a way to solve it?

Second, is it possible to see from which country the invalid activity is coming?